Canon Kabushiki Kaisha

Nikon Corporation

Ntt Electronics Corporation

Makoto Satoh

Yukio Chiba

Katsumi Otsuka

Tetsuya Tateno

Susumu Igarashi

Takahiro Onsen

Sotomitsu Ikeda

Satoshi Naito

Yoshihiko Suzuki

Toshiaki Tamamura

Katsuhiko Kurumada

Masatoshi Kanaya

Satoshi Ishiguro

An image transmission apparatus transfers to an external apparatus data amount information indicating an amount of target image data and information of a priority order of the target image data. The apparatus also receives from the external apparatus a response signal indicating whether the external apparatus will accept transmission of the target image data in accordance with the data amount information, the information of priority order, and a free storage capacity to store the target image data in the external apparatus. Transmission of the target image data is controlled in accordance with the response signal.

Image transfer system and method therefor, image transmission apparatus, and image reception apparatus

A system for administering readout contents according to the present invention includes: an image reader device having an image read unit for reading out contents information drawn on display media with an RF-ID tag and an RF-ID read unit for reading out identification information on the RF-ID tag of the display media by wireless communication; and a data administration device for accumulating the contents information read out by the image read unit and administration information related to the contents information, in association with identification information.

System for administering readout contents, image reader device, and method for administering contents

In image data coding and decoding processing, in order to improve efficiency by processing a plurality of factors in one cycle as long as possible, the factors are rearranged, in coding or decoding processing, in a predetermined scan sequence such that significant factors and 0s are paired. In addition, an appropriate scan sequence is selected in accordance with the distribution state of frequencies to further improve the efficiency.

Image coder/decoder, image coding/decoding method, and storage medium

Image transmission apparatus for controlling transmission of image data based on a signal received from an external apparatus in response to information on an amount of image data

An image encoder of the present invention includes an encoder unit for generating first encoded data, re-encoder unit for re-encoding the first encoded data to generate second encoded data, parameter updating unit for updating of the encoder unit when the sum of data amount of the first and second encoded data reaches a target amount, and controller for starting a re-encoding process when the sum reaches the target amount. The encoder unit encodes still unencoded image data using all encoding parameters that are updated from the parameter that has been used at the beginning of the encoding of the source image data. The image encoder thus encodes image data into data having a desired data amount on a substantial real-time basis. When the encoded data is decoded, non-uniformity in image quality of the decoded image due to different numbers of encoding and decoding operations is controlled.

Image encoder, image encoding method, image encoding computer program, and storage medium

An encoder () encodes image data using a first parameter Q, and a re-encoder () re-encodes the encoded result of the encoder () using a second parameter Q. When the encoded data size obtained by the encoder () exceeds a predetermined size, Qis replaced by Q, and encoded data streams previously encoded by the re-encoder () are saved in a buffer () as those encoded by the encoder () after the parameter is changed. Upon executing a re-encoding process, the re-encoder () re-encodes encoded data streams previously encoded by the re-encoder () using a parameter that can assure a higher compression ratio than Q

Method and apparatus for encoding image data in accordance with a target data size

An optical device is configured such that an insertion plate is held by a flat cantilever having electric wiring, and the flat magnet is placed in such a manner that the magnet faces a surface of the cantilever opposite to the other surface of the cantilever facing an optical waveguide, and that the current flowing through the electric wiring is controlled in this state so that the Lorentz force caused by the interaction between the current and the magnetic field displaces the cantilever to drive the insertion plate, and to insert or remove the insertion plate into or out of the slit provided in the optical waveguide to switch the optical path of signal light or to adjust the quantity of an optical beam.

Optical device

In order to obtain a digital still camera capable of storing only a desired image from photography images, a photography image data generation unit processes an image signal from a CCD to generate high-, middle-, and low-resolution image data. While a photography timing designation button is not depressed, the middle-resolution data is monitored in Dof a display through a buffer memory. When the photography timing designation button is depressed, high- and low-resolution data of three consecutive frames are generated and stored in Mto Mof the buffer memory, and low-resolution data are displayed in Dto Dof the display. The high-resolution data are compressed and encoded, and then stored in Cto Cof a main memory. When the user selects, e.g., Dof the displayed Dto Dwith a touch panel, the corresponding data of Cis extracted from Cto Cand stored in Fof a nonvolatile memory.

Image pickup apparatus, method, and storage medium for displaying, compressing, and encoding image data

Whether a header information processor quickly enters a program inactive state at the timing when it issues an operation start command of an encoding process for a predetermined processing unit to a variable-length code encoder, or the header information processor enters the program inactive state upon completion of execution steps to be processed is adaptively selected in accordance with the number of execution steps. One memory is shared by the header information processor and variable-length code encoder, and address input permission means for controlling to grant permission of an address input to the memory to one of the header information processor and the variable-length code encoder is provided. The memory is used as a work area of the header information processor, and as a storage area of a variable-length code table which is looked up by the variable-length code encoder.

Image processing method, apparatus, and storage medium

The invention provides an image encoding apparatus/method capable of inputting image data, quantizing the image data, variable length encoding the quantized image data, detecting the code length of the encoded image data, storing the encoded image data in a predetermined memory area of memory means, discriminating whether the detected code length exceeds the permissible memory range of the predetermined memory area, and, in case the permissible memory range is exceeded, terminating the storage operation in the memory area and continuing the encoding process and the detection process and setting the quantization parameter of the quantization process according to the result of detection of the detection process.

Image encoding apparatus, method and memory medium therefor

This invention implements a variable-length code pipeline decoding process as hardware by providing additional bit processing means, reducing the load on external control, and clarifying encoded data shift means. For this purpose, in order to determine a code length and additional bit length, two different decode processes are executed, the overall process is separated into three stages, i.e., a stage for shifting out a code word of encoded data, a decode processing stage, and a symbol determination & additional bit processing stage, and these stages are executed in a pipeline manner.

Variable-length decoding apparatus and method

Data buffer apparatus comprising two connectors directly fittable respectively with connectors of data transmitting apparatus and receiving apparatus, and accumulating means for accumulating data. In this buffer apparatus, the data buffer apparatus is capable of a function for accumulating data, entered from the data transmitting apparatus through the first connector in a state in which the connector the date transmitting apparatus is fitted with the first connector, in the accumulating means; and a function for transmitting data, accumulated in the accumulating means, to a data receiving apparatus in a state in which the connector of the date receiving apparatus is fitted with the second connector.

Portable data buffer apparatus with manually controlled

Data buffer apparatus with interrupted transmission/reception

In the terminal A, the input image 'ABC' is displayed in a window 200A, with a rectangular frame 206A indicating the area of transmission. The image in the transmission area is enlarged, and transmitted to the terminal B after compression. In the terminal B, the input image 'efghij' is displayed in a window 200B, with a rectangular frame 206B indicating the area of transmission. The image in the transmission area is enlarged, and transmitted to the terminal A after compression. In the terminal A, the image in a selected area (display area) of the received image is displayed in a window 202A. Also a window 204A displays the position and size of the display area within the entire received image. The transmission area of the input image and the display area of the received image can be enlarged, reduced or displaced.

Image communication apparatus with interactive operator display

In an image processing system of this invention, bit information indicating whether or not a dynamic image is to be overlay-displayed is stored in a memory in correspondence with display pixel positions, and an output image memory control unit reads out this bit information in synchronism with a screen display operation. An overlay processing unit alternatively selects specific input dynamic image signals to be window-displayed in units of display regions, and an image signal of an output image memory, which signal is displayed on another region on the basis of the bit information.

Growing community of inventors

Tokyo, Japan

Makoto Satoh